Finding the Fourth Proportional to 83,895.09, 125,842.50 and 57,519.87
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Solution
The fourth proportional to 83,895.09, 125,842.50 and 57,519.87 is: 86,279.71
Step by Step Solution
- Step 1: Write the proportion equation
83,895.09 : 125,842.50 = 57,519.87 : x - Step 2: Convert to fraction form
83,895.09/125,842.50 = 57,519.87/x - Step 3: Cross multiply
83,895.09x = 125,842.50 × 57,519.87 - Step 4: Simplify right side
83,895.09x = 7,238,444,240.48 - Step 5: Solve for x
x = 7,238,444,240.48/83,895.09 - Step 6: Final answer
x = 86,279.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.